The phase selection logic also provides the information about the phase specific fault
directions. The
STR DIRPHSA
,
STR DIRPHSB
and
STR DIRPHSC
outputs
indicates the direction of the fault in phase A, B and C respectively. The general fault
direction information is provided by the
STR DIRGENERAL
output. The information
is available over GOOSE communication.
Timer
Once the Timer is activated, it activates the
START
output. The
STR PHSA
,
STR
PHSB
and
STR PHSC
outputs indicate which phases are started. The time
characteristic is according to the definite time. When the operation timer has reached
the value set by
Operate delay time
, the
OP GENERAL
output is activated. The
OP
PHSA
,
OP PHSB
and
OP PHSC
outputs indicate which phases are operated. If the
fault disappears before the module operates, the reset is instantaneous and
STR
GENERAL
output is deactivated.
When
Directional mode
is set to “Non-directional”, outputs
OpFwd
and
OpRev
are
activated when a fault is detected in the “Forward” or “Reverse” direction
respectively. However, these outputs are also available when
Directional mode
is set
to “Forward” or “Reverse”.
When
Directional mode
is set to “Non-directional” and PHPTOC
operates in unknown direction, none of the LEDs show fault
inditation.
The
OP GENERAL
output is available at LED 6 of SIM8F module.
The phase segregated as well as general start and operate outputs
STR GENERAL
,
STR PHSA
,
STR PHSB
,
STR PHSC
,
OP GENERAL
,
OP PHSA
,
OP PHSB
,
OP
PHSB
,
OpFwd
and
OpRev
are available over communication.
Directional overcurrent characteristics
The forward and reverse sectors are defined separately. The forward operation area is
limited with the
Min forward angle
and
Max forward angle
settings. The reverse
operation area is limited with the
Min reverse angle
and
Max reverse angle
settings.
The sector limits are always defined as positive degree values.
In the forward operation area, the
Max forward angle
setting defines the
counterclockwise sector and the
Min forward angle
setting defines the corresponding
clockwise sector, measured from the
Characteristic angle
setting.
In the backward operation area, the
Max reverse angle
setting defines the
counterclockwise sector and the
Min reverse angle
setting defines the corresponding
clockwise sector, measured from the
Characteristic angle
setting set to 180°.
Section 6
1MRS757488 H
Commissioning
94
RIO600
Installation and Commissioning Manual
Summary of Contents for Remote I/O RIO600
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